【摘要】 迭代算法相位恢复计算中存在可能陷入局部极小值,导致算法收敛速度慢和不稳定的缺点,为了克服这一缺点,本文利用多个输出平面上光的强度信息,将YG算法推广到空域约束(光强度约束)二维相位恢复问题,提高算法收敛速度。模拟实验结果表明,基于图像序列的YG算法二维相位恢复收敛速度快,相位恢复精度高,同时对噪声具有较好的鲁棒性。更多还原

【Abstract】 A variant YG iterative algorithm for 2D phase retrieval from series of images is presented,which can obtain fast convergence speed and improve the algorithm running stability.This algorithm can be used to retrieve the complicated phase distributions of two dimensional optical fields.The simulation experiments show that this algorithm has high accuracy and fast convergence speed,and it is robust to additive noise.更多还原